EP 2240905 A1 20101020 - SPARSE GEOMETRY FOR SUPER RESOLUTION VIDEO PROCESSING
Title (en)
SPARSE GEOMETRY FOR SUPER RESOLUTION VIDEO PROCESSING
Title (de)
VERSTREUTE GEOMETRIE FÜR HOCHAUFLÖSENDE VIDEOVERARBEITUNG
Title (fr)
GÉOMÉTRIE ÉPARSE POUR UN TRAITEMENT VIDÉO À SUPER-RÉSOLUTION
Publication
Application
Priority
IB 2008051270 W 20080111
Abstract (en)
[origin: WO2009087493A1] In a method of analyzing an input video sequence, pixels of synthesized images of an output video sequence are associated with respective directions of regularity belonging to a predefined set of directions. A first subset of candidate directions is determined from the predefined set of directions for a region of a first image of the output sequence. For a corresponding region of a second synthesized image of the output sequence following the first image, a second subset of candidate directions is determined from the predefined set of directions, based on images of the input sequence and the first subset of candidate directions. The directions of regularity for pixels of this region of the second synthesized image are detected from the second subset of candidate directions. The recursive determination of the subsets of candidate directions provides a sparse geometry for efficiently analyzing the video sequence. The method is well suited for super-resolution video applications such as deinterlacing, frame rate conversion and noise reduction.
IPC 8 full level
G06T 7/20 (2006.01); H04N 5/14 (2006.01); H04N 7/26 (2006.01)
CPC (source: EP US)
G06T 7/238 (2016.12 - EP US); H04N 5/145 (2013.01 - EP US); H04N 5/21 (2013.01 - EP US); H04N 19/86 (2014.11 - EP US); H04N 7/0127 (2013.01 - EP US); H04N 7/0135 (2013.01 - EP US)
Citation (search report)
See references of WO 2009087493A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009087493 A1 20090716; CN 101971209 A 20110209; EP 2240905 A1 20101020; EP 2240905 B1 20120808; JP 2011509617 A 20110324; KR 20100118978 A 20101108; US 2011058106 A1 20110310; US 2014023149 A1 20140123; US 8571114 B2 20131029
DOCDB simple family (application)
IB 2008051270 W 20080111; CN 200880128024 A 20080111; EP 08719873 A 20080111; JP 2010541855 A 20080111; KR 20107017363 A 20080111; US 201314040035 A 20130927; US 81220108 A 20080111